1 /* Test program for dwarf_ranges 2 Copyright (C) 2015, 2018 Red Hat, Inc. 3 This file is part of elfutils. 4 5 This file is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 elfutils is distributed in the hope that it will be useful, but 11 WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18 #include <config.h> 19 #include ELFUTILS_HEADER(dw) 20 #include <dwarf.h> 21 #include <sys/types.h> 22 #include <sys/stat.h> 23 #include <fcntl.h> 24 #include <stdio.h> 25 #include <stdint.h> 26 #include <stdlib.h> 27 #include <assert.h> 28 #include <inttypes.h> 29 30 static void 31 ranges_die (Dwarf_Die *die) 32 { 33 Dwarf_Addr base, start, end; 34 int ranges = dwarf_ranges (die, 0, &base, &start, &end); 35 if (ranges < 0) 36 puts (dwarf_errmsg (-1)); 37 else if (ranges > 0) 38 { 39 printf ("die: %s (%x)\n", dwarf_diename (die) ?: "<unknown>", 40 dwarf_tag (die)); 41 for (ptrdiff_t off = 0; 42 (off = dwarf_ranges (die, off, &base, &start, &end)); ) 43 if (off == -1) 44 { 45 puts (dwarf_errmsg (-1)); 46 break; 47 } 48 else 49 printf (" %"PRIx64"..%"PRIx64"\n", start, end); 50 printf ("\n"); 51 } 52 } 53 54 static void 55 walk_tree (Dwarf_Die *dwarf_die) 56 { 57 Dwarf_Die die = *dwarf_die; 58 do 59 { 60 Dwarf_Die child; 61 ranges_die (&die); 62 if (dwarf_child (&die, &child) == 0) 63 walk_tree (&child); 64 } 65 while (dwarf_siblingof (&die, &die) == 0); 66 } 67 68 int 69 main (int argc, char *argv[]) 70 { 71 assert (argc >= 2); 72 const char *name = argv[1]; 73 74 int fd = open (name, O_RDONLY); 75 Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ); 76 77 Dwarf_CU *cu = NULL; 78 Dwarf_Die cudie, subdie; 79 uint8_t unit_type; 80 while (dwarf_get_units (dbg, cu, &cu, NULL, 81 &unit_type, &cudie, &subdie) == 0) 82 { 83 Dwarf_Die die = (unit_type == DW_UT_skeleton 84 ? subdie : cudie); 85 walk_tree (&die); 86 } 87 dwarf_end (dbg); 88 89 return 0; 90 } 91
